Palmer Dabbelt e8985caf05 RISC-V: Align the shadow stack
[ Upstream commit b003b3b77d65133a0011ae3b7b255347438c12f6 ]

The standard RISC-V ABIs all require 16-byte stack alignment.  We're
only calling that one function on the shadow stack so I doubt it'd
result in a real issue, but might as well keep this lined up.

Fixes: 31da94c25aea ("riscv: add VMAP_STACK overflow detection")
Reviewed-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20221130023515.20217-1-palmer@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-12-31 13:14:27 +01:00
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